使用Opencv调用摄像头并在MFC中进行视频显示

1.打开摄像机

cv::VideoCapture g_camera(0);if (!g_camera.isOpened()){<span style="white-space:pre"></span>g_camera = cv::VideoCapture(1);}if (!g_camera.isOpened()){std::cerr << "Failed opening g_camera" << std::endl;return 1;}if (g_camera.isOpened()){  g_camera.set(CV_CAP_PROP_FRAME_WIDTH, 1280);  g_camera.set(CV_CAP_PROP_FRAME_HEIGHT, 720);}//sometimes the first few frames are empty{  cv::Mat frame;  while (frame.empty())  {  g_camera >> frame;  cv::waitKey(10);  }}while (1){  //get image from camera  cv::Mat frame;  g_camera >> frame;

}

将Mat转换为Windows图片格式CImage，在视图类OnDraw函数中绘制每一帧图像：

CClientDC dc(this);HDC DC = dc.GetSafeHdc();ImageUtility imgut;imgut.MatToCImage(m, g_img);g_img.Draw(DC, rc1);

ImageUtility源码参见：http://blog.csdn.net/shenshen211/article/details/52489086点击打开链接